I own a K1C (bought in June) and two K1 MAX printers (bought in August), and I’ve been having a recurring issue during long prints. The filament seems to bend in the gearbox, which causes it to clog, and the filament can’t feed through to the extruder.
From what I’ve observed, this seems to happen during retraction. I think there are two main factors contributing to the problem:
The filament quality (it’s not the best).
Retraction temperature being too high.
Unfortunately, I can’t change the filament I use. My idea is to keep the model fan running at 100% all the time to make sure the printer head stays properly cooled.
That’s where I need your help. I’m trying to figure out how to enable the model fan to run constantly at 100%, but I can’t find the option in Creality Slicer.
If you have any other ideas about what could be causing this issue or other solutions that might help, I’d love to hear them.
Sounds like heat creap. Are you printing with the lid on and door closed and PLA/PETG/TPU filament. The model fan will not help with that, there is another fan behind the printhead circuit board that cools the heatsink for the heatbreak and that fan starts the minute the hotend starts heating and keeps running at 100% until the temp of the hotend drops below 40-30C
Yes i’m printing in PETG with the door closed
What I’ve done so far is to ensure that the model fan runs at 100% and that the back fan is always set to 100% as well. I also adjusted the retraction distance from 0.8 to 0.4, which seems to have resolved the problem.
However, I currently have to manually modify the model fan value to keep it at 100%. Do you know how I can configure it to stay that way automatically?